Blower-pipe attachment



Oct. 22, I929 J. E. WINE GARNER v BLOWER PIPE ATTACHMENT 2 Shets-SheetFiled May 21, 1928 Patented Oct. 22, 1929 UNlTD ST 4 JONAS E.\VINEGABNER, F XWARRENSBURG, ILLINOIS BLOWER-PIPE Application filed May21,

This invention relates to an attachment for a blower pipe such as isused in connection with a grain thrashing machine.

its is well known, this pipe conveys a current of air under pressure,which serves to carry oil the chaff, straw and the like. This loosematerial is ordinarily stacked in the field for subsequent use. Inbuilding the stack however, there is no means to regulate the size andshape thereof, particularly on the rear side. For example, when startingthe stack, the loose material is carried out a distance from thedischarge end of the blower pipe, until the force of the air isexpended. Hence the material on the rear of the stack is usually loose,and easy blown away in wind and rain storms.

ll hat I propose to provide is an attachment which includes a rnovablymounted back stop, such as can be raised and lowered to cooperate withthe discharge end and to aid in shaping and building the stack, so thatit assumes a different shape, and the material is packed more firmly.

Other features and advantages of the invention will become apparent fromthe following description and drawings.

in the accompanying drawings, wherein like reference characters areemployed to designate like parts of the same Figure 1 is a sideelevational view of: the discharge end of the blower pipe showing theattachment in position thereonwith the back stop in lowered position.

Fig. 2 is a top plan view of the same.

Fig. 3 is an end view of the flexible back stop.

Fig. 4t is a cross section taken approximately upon the plane of theline fs- 1: of Fig. 1, looking in the direction of the arrow.

Fig. 5 is a fragmentary perspective view of one of the supporting armsfor the back stop.

Fig. 6 is a cross section taken approximately upon the plane of the line6-6 of Fig. l.

Reterring to the drawings by numerals, it will be observed that thereference character 7 designates generally a back stop. This comprises across. bar 8 carrying a plurality of depending chains 9, suspendedtherefrom in longitudinally spaced relation. These ATTAGIEIMENT 19538. S.ial 1T0. 279,545.

chains are free at their lower ends to permit them to serve in aneflicient manner without becoming entangled with the loose material.

The cross bar 8 is attached to a pair of soaced pru'allel arms 10disposed on opposidcsot' the discharge end portion of the blower pipe11. At 12 and 13 are appropriate braces for rendering the structurerigid.

its better shown in Fig. a, a split band it embraces and is fastened tothe pipe adjacent the downturned discharge end. This band l'nrovidedwith diametrically opposite right angular brackets 15 having openingstor accommodating the connecting and pivot pins 16 (see Fig. 5). It willbe observed that by providing a series of these pins, the arms can beadjusted longitudinally to vary the distance between the back stop andthe discharge end of the blower pipe.

Moreover, the pins are separably connected with the brackets so that theentire swinging structure can be removed from the pipe. Attached to theinner end portions of the arms, as better shown in Fig. 6, is a stirrup17 whose arms 18 are pivoted to the arms 10 as at 19. The purpose ofthis stirrup is, principally, to limit the swinging position of theinner end portions of the arms 10 as showiiin Fig. 1. This of course,limits the downward or lowermost position of the lienible backstop 7.

It will be observed that the bight portion 20 oil the stirrup is formedwith a keeper seat 21, carrying an eye or ring 22. The purpose of theeye is to permit the hooked end of a pull rod 23 to be connectedtherewith as shown in Fig. 1., so that theoperator on the ground maypull downwardly on the rod to lift up on the back stop.

When the yoke is thus pulled downwardly, it is held down by the actionof a small latch 24, the lower end of the latch being notched and onaging in the keeper seat 21, as shown plainly in Fig. 6. The latch ispivoted between the split ends 25 of a ring 26 which surrounds the pipe.Incidentally this ring is provided with a guide 27 through which thearms 15% of the yoke extend.

Obviously, as the yoke is pulled down by the rod 23, the latch 18 swingsdown on its 7 pivot and the notched end thereof engages in the keeperseat 21, to hold the yoke down. This in turn, holds the arm 10 in thehorizontal dotted position shown in Fig. 1. Therefore, the back stop hasa lower position and an upper position, and it can be movedintermediately through the use of the rod 23.

To begin with, the back stop is lowered so that as the loose material isblown out from the pipe under the action of the wind pressure, the samebacks up against the back stop and is started in a pile. Then by propermanipulation of the back stop, the loose material can be piled into afirm and properly shaped stack.v

Minor changes in shape, size, and re-arrangement of parts coming withinthe field of invention claimed may be resorted to if desired.

I Having thus described my invention, what I-claim' as new is 1. In a.structure of the class described, a back stop, a pair of spaced parallelattaching arms, means for adjustably and detachably connecting said armswith a blower pipe, a yoke pivotally mounted upon the inner end of saidarm and adapted to limit swingi-ngmovement of the arms in one direction,together with a gravity lowered pivotally mounted latch cooerable withsaid yoke, for holding the yoke in its lowermostposition.

2. An attachment of the class described, comprising a backing memberembodying a cross head, and a plurality of flexible chains carriedthereby, a pair of attaching arms connected to the cross head anddisposed in spaced parallelism, and. adapted to occupy a position onopposite sides of a blower pipe, a band adapted'to embrace the-blowerpipe and, provided, with apertured brackets, pins carried by said armsadapted to be selectively arranged with the apertures in said brackets,a yoke pivotally mounted upon the inner ends of said arms, said yokehaving its bight portion formed with a keeper seat, a gravity loweredpivotally mounted latch, means for mounting the latch on the blowerpipe, said latch being associated With said keeper seat, whereby to holdthe yoke in a predetermined position.

In testimony whereof I affix my signature.

' JONAS E. WINEGARNER.

